1. Minnie B. Hall De Soto to Mary Baker Eddy, 13 August 1886, IC223A.37.012.
  2. Sara Alpern, “Harriet Williams Russell Strong: Inventor and California Businesswoman Extraordinaire,” Southern California Quarterly, Vol. 87, No. 3, Fall 2005, 223.
  3. Jane Apostol, “Harriet Russell Strong: Horticulturalist, Conservationist, and Feminist,” California History, Vol. 85, No. 2, 2008, 50–53.
  4. Susan Albertine, “Self Found in the Breaking: The Life Writings of Harriet Strong,” Biography, Vol. 17, No. 2, Spring 1994, 165.
  5. Harriet Williams Russell Strong to Mary Baker Eddy, 28 January 1885, IC715A.87.025.
  6. Albertine, “Self Found in the Breaking: The Life Writings of Harriet Strong,” 161.
  7. Apostol, “Harriet Russell Strong: Horticulturalist, Conservationist, and Feminist,” 50–65.
  8. Susan Fourtane, “51 Female Inventors and Inventions that Changed the World,” Interesting Engineering, 14 April 2023, https://interestingengineering.com/innovation/female-inventors-and-their-inventions-that-changed-the-world-and-impacted-the-history-in-a-revolutionary-way
  9. Lisa A. Marovich, “‘Let Her Have Brains Too’: Commercial Networks, Public Relations, and the Business of Invention,” Business and Economic History, Vol. 27, No. 1, Fall 1998, 253.
  10. National Inventors Hall of Fame, “Recognizing the Strength and Ingenuity of Harriet Strong,” 22 March 2021, https://www.invent.org/blog/inventors/harriet-strong-water-irrigation
  11. Elisabeth L. Uyeda, “Harriet Strong in Whittier, Cal.,” Los Angeles Revisited, 25 August 2010, https://losangelesrevisited.blogspot.com/2010/08/harriet-strong-in-whittier-cal.html
  12. National Women’s Hall of Fame, “Harriet Williams Russell Strong,” https://www.womenofthehall.org/inductee/harriet-williams-russell-strong/
  13. National Inventors Hall of Fame, “Recognizing the Strength and Ingenuity of Harriet Strong,” 22 March 2021, https://www.invent.org/blog/inventors/harriet-strong-water-irrigation
  14. Alpern, “Harriet Williams Russell Strong: Inventor and California Businesswoman Extraordinaire,” 223.
  15. Apostol, “Harriet Russell Strong: Horticulturalist, Conservationist, and Feminist,” 65.
  16. “Letters to Our Leader,” Christian Science Sentinel, 7 September 1907. https://sentinel.christianscience.com/issues/1907/9/10-1/letters-to-our-leader